Optimux-XLE1 provides a simple, flexible and
cost-effective solution for transporting multiple E1 links and Ethernet at
distances up to 110 km (69 miles). Two versions of the multiplexer are
available: modular and non-modular.

Modular Version

The modular version of the Optimux-XLE1 integrates
up to 12 E1 channels or up to four Ethernet LANs over a single E3 link.
This provides an easily upgradable solution, flexible enough to meet the
specific requirements of a broad range of applications.

The modular version supports one fixed 10BaseT
Ethernet port and three additional plug-in channel modules. Available
channel modules are:

Dual channel E1

Quad channel E1

10BaseT Ethernet.

Modules can be combined in various ways, ranging
from four Ethernet ports to a single Ethernet port with up to 12 E1
channels.

Non-Modular Version

The non-modular version supports 16 E1 channels,
and is designed for applications requiring the full E3 bandwidth for
multiple E1 connectivity.

General

Various optical interfaces are available:

850 nm for multimode fiber

1300 nm for single or multi mode fiber

1300 nm and 1550 nm laser diode, long haul laser
or WDM laser for extended range over single mode fiber

Two Optimux-XLE1 units can be connected over a
single fiber (SF) using the WDM technology. (The transmit signal is at a
different wavelength than the receive signal.)

All critical components can be automatically backed
up. This ensures there is no single point of failure. An optional second
link provides backup, using automatic switch-over upon link failure. An
optional second power supply provides power redundancy and fail-safe
operation.

Ethernet data is transmitted using a built-in
bridging function. The bridge operates at "almost wire-speed" (8.4 Mbps)
and supports up to 10,000 addresses.

Optimux-XLE1 transmits each of the E1 channels
independently, such that the clock of each E1 channel is independent. The
E1 interface can be 75( unbalanced or 120( balanced.

A single station clock module can be ordered to
facilitate external clocking.

To facilitate system diagnostics, Optimux-XLE1
features LED status indicators, AIS alarm generation, recognition and dry
contact closure upon link failure. In addition, the Optimux-XLE1 setup,
control and diagnostics can be performed via:

A supervisory port using an ASCII terminal

An SNMP management station via the Ethernet ports

A dedicated separate Ethernet management port.

The SNMP management application offers the
following options:

RADview-PC/TDM running in a Windows environment;
or

RADview-HPOV/TDM for UNIX platforms.

Optimux-XLE1 is available as a compact 1U high unit
for mounting in a 19" rack.

It is possible to add a redundant link to an
existing unit or to replace the link modules by ordering E3 coax,
multimode, or single mode AMC-101 modules.

Integrates multiple E1 and Ethernet links over a
single cable

E3 transmission over coax or fiber optic cable

Supports multimode fiber, single mode fiber and
single mode over single fiber (WDM)